Fix compilation errors for do_fork() and print_symbol()

The i_dev field is deleted and the few uses are replaced by i_sb->s_dev.

There is a single side effect: a stat on a socket now sees a nonzero
st_dev.  There is nothing against that - FreeBSD has a nonzero value as
well - but there is at least one utility (fuser) that will need an
update.

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

into tp1.ruhr-uni-bochum.de:/scratch/kai/kernel/v2.5/linux-2.5.make

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

This patch breaks up and removes fs/devices.c, moving functions to more
logical places.

  character device functions -> char_dev.c
  init_special_inode() -> inode.c
  kdevname() -> libfs.c (this should die, but that's another patch)
  bad_sock_fops -> socket.c

This fixes some more file system for the CURRENT_TIME change:
AFS, ADFS, and a harmless one in CIFS.

Somehow these changes got lost in the original patch kit.

The Stanford checker found an error in advansys.c, the driver
is accessing field 6 in an array[6].  Since this is the only
place where this field is accessed it should be safe to simply
remove this line.

We don't need to send an empty message to
set up remote address when sending tcp reply, so
we don't.  Also, as the data is empty, we don't
need to set_fs.

If an NFS request arrives in a linear skb,
we don't need to copy it, particularly if the
network card has already done the DUB checksum.

This patch only copies a request if it is
already non-linear.

 Hirokazu Takahashi <taka@valinux.co.jp> noticed that
 svc_udp_recvfrom wouild set some fields in rqstp->rq_arg
 wrongly if the request was shorter than one page.
 This patch makes the code in udp_recvfrom the same
 as the (correct) code in tcp_recvfrom.

If the 'data' component of a readdir response is
exactly one page (the max allowed) then we currently
only send 0 bytes of it, instead of PAGE_SIZE bytes.

Now that requests are broken into non-contiguous pages,
an NFSv3 symlink request could be larger than a page and
so non-continguous.
This patch copies the symlink into a new page (while checking
for nul bytes) so nfsd_symlink will definately get a
contiguous link.

when do_md_run fails mddev->pers is not set, so
do_md_stop will not try to write out the superblock
so there is no need to set sb_dirty to 0.

They take the length of the passed bvec into account, which is wrong.

This is a requirement for ancient gcc's

So poor old Dave spent days hunting down memory corruption because the
`kstat' per-cpu storage is not initialised (it needs to be, it's a workaround
for ancient gcc's).

The same problem had me hunting for a day too.

This patch, based on an initial version from Rusty will
parse System.map at final link and will fail the build if
any per-cpu symbols are found to be not in the percpu section.

egcs-1.1.2 doesn't understand that form of vararg macro

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

This adds the KT400 pci ID and lists it as using Via generic setup
routines.  This patch has been tested with all GL xscreensavers I could
find, and been reviewed by Dave Jones (full patch history at
http://bugzilla.kernel.org/show_bug.cgi?id=3D14).

diff -uNr linux-2.5.47-ac6.orig/drivers/char/agp/agp.c
linux-2.5.47-ac6/drivers/char/agp/agp.c

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

Support more flexible child pid set/clear operations for NPTL.

there's one more improvement in the interface: set the parent-TID prior
doing the copy_mm() - this helps cfork() to pass the TID to the child as
well.

Very recent Athlons (Model 8 stepping 1 and above) (XPs/MPs and mobiles)
have an interesting problem.  Certain bits in the CLK_CTL register need
to be programmed differently to those in earlier models. The problem arises
when people plug these new CPUs into boards running BIOSes that are unaware
of this fact.

The fix is to reprogram CLK_CTL to 200xxxxx instead of 0x600xxxxx as it was
in previous models. The AMD folks have found that this improves stability.

The patch below does this reprogramming if an affected model/bios is
detected.

I'm interested if someone with an affected model could run some
benchmarks before and after to also see if this affects performance.

uClinux ports can't use mmu tricks for reading /dev/zero due to the
lack of one.  similarly it can't mmap /dev/zero.

We must always use total_swapcache_pages instead of
swapper_space.nrpages in code that doesn't depend on CONFIG_SWAP

into are.twiddle.net:/home/rth/BK/axp-2.5